package com.study.dao;

import java.util.List;

import com.study.model.StudentInfo;

public interface StudentDao {
	
	public int save(StudentInfo info);
	
	public void delete(int id);
	
	public void update(StudentInfo info);
	
	public StudentInfo queryById(int id);
	
	public List<StudentInfo> queryAll();

	public void deleteByClassesId(int id);
	

}
